Question
[37]. A cubical gift box with edge 6 cm is to be covered completely with wrapping paper on all six faces, with no overlap. What area of wrapping paper is needed? / किनारा 6 सेमी वाले घनाकार उपहार-डिब्बे को बिना ओवरलैप के सभी छह फलकों पर रैपिंग पेपर से पूरी तरह ढकना है। रैपिंग पेपर का कितना क्षेत्रफल चाहिए?
Option 4 : 216 sq cm
Detailed Solution
सही उत्तर 216 sq cm है।
Surface area of a cube = 6 × (edge)² = 6 × 6² = 6 × 36 = 216 sq cm. / घन का पृष्ठीय क्षेत्रफल = 6 × (किनारा)² = 6 × 6² = 6 × 36 = 216 वर्ग सेमी।
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prepsnap.in • Mock TestQuestion:
[37]. A cubical gift box with edge 6 cm is to be covered completely with wrapping paper on all six faces, with no overlap. What area of wrapping paper is needed? / किनारा 6 सेमी वाले घनाकार उपहार-डिब्बे को बिना ओवरलैप के सभी छह फलकों पर रैपिंग पेपर से पूरी तरह ढकना है। रैपिंग पेपर का कितना क्षेत्रफल चाहिए?
Correct Answer: 216 sq cm
Surface area of a cube = 6 × (edge)² = 6 × 6² = 6 × 36 = 216 sq cm. / घन का पृष्ठीय क्षेत्रफल = 6 × (किनारा)² = 6 × 6² = 6 × 36 = 216 वर्ग सेमी।